ASTROSAT CZTI

Data Quality Report

Orbit 43188

Creation date: 2024-06-27T22:49:04.676696
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A09_036T17_9000005858_43188cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43188cztM0_level2_quad_clean.evt
Size (bytes)444,055,68087,258,240
Size423.5 MB 83.2 MB
Events in quadrant A6,901,247457,951
Events in quadrant B3,320,325628,616
Events in quadrant C2,652,200603,469
Events in quadrant D3,120,039552,948

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243552
B0137742
C0114852
D0132292

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5698171830.150930%
B5698500.877501%
C569880.140400%
D5698981.719902%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7281 5699 1148 1148 15.77% 20.14%
B 7281 5699 21 21 0.29% 0.37%
C 7281 5699 3 3 0.04% 0.05%
D 7281 5699 98 98 1.35% 1.72%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 222 3277926 29894.51 529 518 109.6
A 15 237 645993 5887.63 529 518 109.6
A 10 83 558644 5090.88 529 518 109.6
B 0 186 677642 5591.62 622 605 121.1
B 0 189 104389 857.15 622 605 121.1
B 5 255 53829 439.57 622 605 121.1
C 15 214 237252 1641.86 611 612 144.1
C 14 254 13088 86.56 611 612 144.1
C 4 254 9255 59.97 611 612 144.1
D 1 52 504277 3295.49 612 594 152.8
D 12 233 99313 645.9 612 594 152.8
D 5 171 60234 390.21 612 594 152.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter